esp-idf/components/esp_hw_support/include/esp_cpu.h

102 wiersze
2.4 KiB
C

/*
* SPDX-FileCopyrightText: 2010-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef _ESP_CPU_H
#define _ESP_CPU_H
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
#include "hal/cpu_hal.h"
#ifdef __cplusplus
extern "C" {
#endif
#define ESP_WATCHPOINT_LOAD 0x40000000
#define ESP_WATCHPOINT_STORE 0x80000000
#define ESP_WATCHPOINT_ACCESS 0xC0000000
typedef uint32_t esp_cpu_ccount_t;
/** @brief Read current stack pointer address
*
*/
static inline void *esp_cpu_get_sp(void)
{
return cpu_hal_get_sp();
}
/**
* @brief Stall CPU using RTC controller
* @param cpu_id ID of the CPU to stall (0 = PRO, 1 = APP)
*/
void esp_cpu_stall(int cpu_id);
/**
* @brief Un-stall CPU using RTC controller
* @param cpu_id ID of the CPU to un-stall (0 = PRO, 1 = APP)
*/
void esp_cpu_unstall(int cpu_id);
/**
* @brief Reset CPU using RTC controller
* @param cpu_id ID of the CPU to reset (0 = PRO, 1 = APP)
*/
void esp_cpu_reset(int cpu_id);
/**
* @brief Returns true if a JTAG debugger is attached to CPU
* OCD (on chip debug) port.
*
* @note If "Make exception and panic handlers JTAG/OCD aware"
* is disabled, this function always returns false.
*/
bool esp_cpu_in_ocd_debug_mode(void);
static inline esp_cpu_ccount_t esp_cpu_get_ccount(void)
{
return cpu_hal_get_cycle_count();
}
static inline void esp_cpu_set_ccount(esp_cpu_ccount_t val)
{
cpu_hal_set_cycle_count(val);
}
/**
* @brief Set a watchpoint to break/panic when a certain memory range is accessed.
*
* @param no Watchpoint number. On the ESP32, this can be 0 or 1.
* @param adr Base address to watch
* @param size Size of the region, starting at the base address, to watch. Must
* be one of 2^n, with n in [0..6].
* @param flags One of ESP_WATCHPOINT_* flags
*
* @return ESP_ERR_INVALID_ARG on invalid arg, ESP_OK otherwise
*
* @warning The ESP32 watchpoint hardware watches a region of bytes by effectively
* masking away the lower n bits for a region with size 2^n. If adr does
* not have zero for these lower n bits, you may not be watching the
* region you intended.
*/
esp_err_t esp_cpu_set_watchpoint(int no, void *adr, int size, int flags);
/**
* @brief Clear a watchpoint
*
* @param no Watchpoint to clear
*
*/
void esp_cpu_clear_watchpoint(int no);
#ifdef __cplusplus
}
#endif
#endif // _ESP_CPU_H